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JPS5778298A - Portable small-sized composite sound producing device - Google Patents

Portable small-sized composite sound producing device

Info

Publication number
JPS5778298A
JPS5778298A JP55153612A JP15361280A JPS5778298A JP S5778298 A JPS5778298 A JP S5778298A JP 55153612 A JP55153612 A JP 55153612A JP 15361280 A JP15361280 A JP 15361280A JP S5778298 A JPS5778298 A JP S5778298A
Authority
JP
Japan
Prior art keywords
sound
speakers
producing device
portable small
sound producing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP55153612A
Other languages
Japanese (ja)
Inventor
Hisayoshi Nakatsuka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Namiki Precision Jewel Co Ltd
Original Assignee
Namiki Precision Jewel Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Namiki Precision Jewel Co Ltd filed Critical Namiki Precision Jewel Co Ltd
Priority to JP55153612A priority Critical patent/JPS5778298A/en
Publication of JPS5778298A publication Critical patent/JPS5778298A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00Producing acoustic time signals by electrical means
    • G04C21/02Constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

PURPOSE:To increase additional value for sound energizing function, by arranging >=2 speakers having different reproducing frequency bands at sound energizing section arbitrarily. CONSTITUTION:At upper part of a digial watch 11, micro-speakers 13, 13' of electromagnetic type or piezoelectric type driven by a rectangular wave signal or triangle wave signal are arranged. Since left and right speakers 13, 13' have different reproduction frequency band, the broad band reproduction is enabled and also the resolution of scale is increased by using one for accompaniment and another for main melody. Further, through the combination of song voice, main melody, voice and music, a portable small-sized sound producing device having rich variety, doubled amusement and high additional value together with clear composite sound can be realized.
JP55153612A 1980-10-31 1980-10-31 Portable small-sized composite sound producing device Pending JPS5778298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153612A JPS5778298A (en) 1980-10-31 1980-10-31 Portable small-sized composite sound producing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153612A JPS5778298A (en) 1980-10-31 1980-10-31 Portable small-sized composite sound producing device

Publications (1)

Publication Number Publication Date
JPS5778298A true JPS5778298A (en) 1982-05-15

Family

ID=15566284

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153612A Pending JPS5778298A (en) 1980-10-31 1980-10-31 Portable small-sized composite sound producing device

Country Status (1)

Country Link
JP (1) JPS5778298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7671493B2 (en) 2007-03-09 2010-03-02 Sony Corporation Vibration assembly, input device using the vibration assembly, and electronic equipment using the input device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7671493B2 (en) 2007-03-09 2010-03-02 Sony Corporation Vibration assembly, input device using the vibration assembly, and electronic equipment using the input device

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